In that case you do not need to hire a CD. You're not ready for that
step. When you have the rights then you can start using a CD.
So you need Ms. Monae to help you raise funds through Kickstarter?
So she will be a partner in this project – an essential partner. You
are not offer her a job you are asking her to partner with you as a
key element in getting funding.
Also, what are the steps I should take before approaching a Casting Director or the artist's agent?
Ms. Monae is with Paradigm. Her agent is Marty Diamond.
You need to make a compelling case that YOU are the only person
who can bring this project to fruition. At this point you are not in a
strong place. If you approach the artists agent without owning the
rights and they love the idea, they can move forward faster than
you can. You should already own the rights before you contact the
artist's agent.
Good luck! I love the idea. I hope you keep us informed on your
progress. Pulling off something like this will be amazing and very
inspiring.